V2EX inlier

Inlier

释义 Definition

inlier(内点/内群值):在统计学、数据分析或机器学习中,指落在主要数据分布范围内、与整体模式一致的数据点或观测值;常与 outlier(离群点)相对。该词也常用于计算机视觉(如 RANSAC)中,表示符合某个模型拟合结果的数据点。

例句 Examples

The algorithm kept the inliers and removed the noisy points.
算法保留了内点,并移除了噪声点。

After fitting the line, we counted how many inliers supported the model, which made the final estimate more reliable.
在拟合直线之后,我们统计了有多少内点支持该模型,这使最终估计更可靠。

发音 Pronunciation

/nla.r/

词源 Etymology

inlierin-(在内) + -lier(与 outlier 同类的构词形式)组成,字面意思就是“在(群体)之内的点”。它作为 outlier(离群点)的对应概念,在统计与数据分析语境中逐渐固定下来,用来描述“符合主趋势/模型”的数据点。

相关词 Related Words

文学与经典著作 Literary Works

  • Pattern Recognition and Machine Learning(Christopher M. Bishop)在鲁棒估计与模型拟合相关内容中常用 inlier/outlier 对比。
  • Robust Statistics(Peter J. Huber & Elvezio M. Ronchetti)讨论鲁棒方法时,常以“内点 vs. 离群点”来说明估计的稳定性。
  • Multiple View Geometry in Computer Vision(Hartley & Zisserman)在几何模型估计、RANSAC 等方法中使用 inlier 表示支持模型的数据点。
  • Computer Vision: A Modern Approach(Forsyth & Ponce)在特征匹配与鲁棒拟合章节中使用 inliers 描述一致匹配/有效支持点。
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